Woven fabric.



PATENTED MAR. 29, 1904.

' No. 756,150.. I

- W. M. STEVENSON.

WOVEN FABRIC. APPLICATION mum ms. 10, 1902.

N0 MODEL.

UNITED STATES fatented. March 29, 1904.

PATE T OFFICE.

WOVEN FABRIC.

SPECIFICATION forming part of Letters Patent No. 756,150, dated March29, 1904.

Application filedIebruary 10, 1902.

To all whom it may con/0677i):

Be it known thatI, WILLIAM M. STEVENSON, a citizen of the United States,and a resident of Indian Orchard, Massachusetts, have invented certainImprovements in Woven Fabrics, of which the following is aspecification.

My invention relates to fabrics of the ingrain type, in whichweft-threads are com bined with binding warp-threads so disposed inrespect to said weft-threads as to form a series of .plies, the objectbeing to produce fabric of this character having more than two plies andin which the plies shall be firmly bound together at all points, therebeing no independent and disconnected plies forming pockets, as inordinary ingrain fabrics.

In carrying out my invention I use as many warp-threads in each set asthere are weftthreads in a set, whereby each weft-thread will becontained in a shed of its own, and the threads of the plies will thusbe caused to lie one above another, so that they can be beaten upclosely, whereby the weft-threads of an intermediate ply will not showthrough between the weft-threads of either face-ply.

The figure in the accompanying drawing is an exaggerated section takenin the direction of the warp and showing a three-ply fabric made inaccordance with my invention.

The fabric comprises weft-threads in sets of six, numbered,respectively, 9, 10, 11, 12, 13, and 14, and binding warp-threadslikewise in sets of six, numbered, respectively, 15, 16, 17, 18, 19, and20, each set of weft-threads being so disposed as to form three plieswith two weft-threads in each ply and the warp-threads being so disposedthat each warp-thread will pass over a weft-thread of one face-ply andthence downwardly under a weft-thread of the other face-ply of a set inadvance, the warpthreads crossing each other between each faceply andthe intermediate ply and also between threads of said intermediate ply,as fully shown in the drawing.

The weft-threads are shot in the same order in each set, but whether aweft-thread appears in the upper face-ply, the lower face-ply, or theintermediate ply depends upon the manipulation of the warp-threads, oneof said warp-threads of the set being raised and the Serial No. 93.322.(No specimens.)

others depressed if the weft-thread is to be shot into the upperface-ply, three of the warpthreads being raised and three depressed ifthe weft-thread is to be shot into the intermediate ply, and one of thewarp-threads being depressed and the others raised if the weftthread isto be shot into the lower face-ply.

'- By proper manipulation of the warpthreads, therefore, the desiredground, figure, mate-thread, or shot-about effects can be produced inthe same manner as in weaving ordinary ingrain fabric.

It will be observed that each of the weftthreads of each ply of thefabric is contained in a separate and independent shed of warp, eachwarp-thread forming first a binder for a weft-thread of one face-ply andthen a binder for a weft-thread of the other face-ply, and by reason ofthis construction the three plies of the fabric are firmly boundtogether at all points. Hence the fabric is entirely without independentplies or pockets, such as characterize an ordinary ingrain-carpetfabric, and the intermediate weft-threads are caused to lie directlybelow the weft-threads of the upper face ply and directly above theweftthreads of the lower face-ply, the fabric being beaten up so closelythat a weft-thread of an intermediate ply cannot be seen between theweft-threads of either face-ply.

The fabric is reversible, having the same pattern on each face, but withdifferent distributions of color, the six weft-threads shown providingfor fourteen diiferent color combinations on each face. When suchdiversity of coloring is not desired, however, the weftthreads maychange from face-ply to face-ply Without any change of the intermediateweftthreads, and the latter may in such case be composed of cheapermaterial than the others.

Having thus described my invention, I claim and desire to secure byLetters Patent- 1. A woven fabric in which sets of weftthreads arecombined with sets of binding warp-threads comprising as many threads asthere are weft-threads in a set, said warpthreads being shedded so as toform the weftthreads into face and intermediate plies,- each weft-threadin each ply being contained in its own shed of warp-threads and theweft-threads of the different plies being disposed one above another,each warp thread binding first a weft-thread of one face-ply and then aWeftthread of the other face-ply and crossing another Warp-threadbetween each face-ply and an intermediate ply, substantially asspecified.

2. A woven fabric in which sets of weftthreads are combined with sets ofbinding warp-threads comprising as many threads as there areweft-threads in a set, said warpthreads being shedded so as to form theweftthreads into face and intermediate plies, each weft-thread in eachply being contained in its own shed of warp-threads and the weft-threadsof the different plies being disposed one above another, each warpthread binding first a weft-thread of one face-ply and then a Weftthreadof the other face-ply and crossing another warp-thread between eachface-ply and an intermediate ply, and also between weftthreads of saidintermediate ply, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM M. STEVENSON.

Witnesses:

GEO. L. CHAPIN, W. S. CoLwELL.

